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- Plan & Spec Management
Evaluate new bid opportunities, search full plan sets, compare plan versions and more.
Quantity TakeoffCalculate material & labor with quick and accurate digital measurement tools.
Estimates & ProposalsLeverage integrated items, assemblies and regional pricing to prepare winning bids.
See how STACK Supports the Construction Lifecycle
By harnessing the power of the cloud, STACK offers solutions to take contractors through preconstruction and construction.
- Customer Spotlight
STACK Powers Demotik’s Leap in Efficiency and Profit Margins
Demotik, a super-subcontractor based out of Cypress, Texas, achieved 50-75% better productivity with STACK!
- Resource Center
STACK's central hub for all the essential tools, insights and information you need to get started.
Help CenterSTACK's go-to resource for quick answers, tutorials, support and more.
News You Can Use:
STACK is proud to announce a strategic partnership with Pine Services Group, a premier holding…
STACK vs. On-Screen Takeoff
Stack Up Your Takeoffs with AI-Powered Precision
Outperform On‑Screen Takeoff with STACK’s cloud-based, AI-enhanced workflows. Bid faster, estimate smarter, and boost profits.
Here's Why STACK Outclasses OST
AI-Powered Takeoff Automation
On-Screen Takeoff
OST only offers “Takeoff Boost™” with limited AI to identify wall types and basic measurements
STACK
STACK Assist includes Floor Plan AI and Roof AI, which automatically detect walls, doors, windows, rooms, and roof pitch—creating editable takeoffs so your team can work faster & smarter.
Why does it matter?
STACK Assist shaves hours off manual drawing and minimizes human error. OST can’t compete.
Integrated Estimating & Proposal Tools
On-Screen Takeoff
OST requires you to add-on Quick Bid for estimating workflows.
STACK
STACK seamlessly connects takeoff, pricing (regional cost data + detailed estimates), and proposal output.
Why does it matter?
STACK’s all-in-one platform eliminates manual data transfers and reduces pricing errors, mean you can bid faster and win more.
Cloud-Based Collaboration and Version Control
On-Screen Takeoff
OST is Desktop-centric, so file sharing relies on local syncing.
STACK
STACK’s fully cloud-based platform has plan versioning, overlay, and real-time collaboration. No emailing PDFs or plan version confusion!
Why does it matter?
With OST, you’re stuck in the office. STACK keeps your whole team on the current documents anytime, anywhere.
On-Screen Takeoff | vs. | STACK |
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On-Screen Takeoff | vs. | 
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AI-Powered Floor Plan and Roof Takeoff | ||
OCR-Powered Full-Document Search | ||
Plan Version Control
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Built-In Estimating and Proposal Workflows | ||
Mobile Field App for Real-Time Jobsite Access | ||
Plan Tagging & Labeling | ||
Cloud-Based |
And so much more. To learn more about every feature we’ve got, check out our features page.
Switching to STACK is easy with 5 simple steps
Changing construction software doesn’t have to be a headache. Making the switch to STACK is an investment in the future efficiency and success of your business.
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See what STACK customers are saying:
Frequently Asked Questions
Yes—STACK Assist is available now, automating walls, windows, doors, rooms, and roof takeoffs so your team can focus on estimate accuracy.
Absolutely. STACK is cloud-based with a robust mobile app, letting you view plans, data, and updates anytime, anywhere.
Built-in overlay and version control highlight diffs and keep all team members synced—no more missed revisions.
No. STACK includes integrated estimating tools, cost databases, and proposal generation—everything in one platform.
STACK offers intuitive UI, robust onboarding, and training resources. Plus, your existing takeoff templates and documents can be quickly imported and adapted in-platform.
